Lt Nono

[APPEL A CONTRIBUTION ASTROPHOTO] Coucou les astram·es! Pour un projet super cool de science participative que je mets en place j'aurais besoin de vos images brutes de la sublime Nébuleuse du Cœur IC1805 obtenues récemment (après 2024). Qui qu'a ça? 😁 Please faites tourner à vos potes astrophoto👏

Somme pretty nice tidal interactions going on in the NGC474 galaxy and its neighboring galaxies. This #astrophotography is a collaborative work with @vbioret.bsky.social with around 31h of subs total. The night is dark and full of wonders 😇. Where do you put this @kat-astro-bot.bsky.social ?

Hé! La tempête G3 en cours commence à donner quelques lueurs rosées 🙂. Satanés lampadaires! #Aurores

Cette somptueuse prise par l'astrophotographe Engelbert Vollmer met en évidence le très faible halo d'étoiles entourangt la célèbre galaxie du Sombrero. On y voit des courants d'étoiles issues de collisions et de fusions de galaxies plus petites, par le passé. app.astrobin.com/u/Fox368?i=5...

Sh2-157 / The Lobster Claw Nebula 🦞 🔭 Quick processing after coming back from Normandy weekend. I'm pretty happy with the result considering the poor skies I had that night. I think there's more signal to reveal, so I'll reprocess it. (To be continued).

Après avoir fabriqué leurs propres papyrus enroulés et carbonisés, des scientifiques sont arrivés à déchiffrer le texte, en détectant le plomb contenu dans l'encre grâce à la tomographie par rayons X et à la fluorescence X. journals.plos.org/plosone/arti...

We made the NY Times!!! 🤩 🔭🧪🎢

One for the record books 🏅 ESO's Very Large Telescope Interferometer has discovered the fastest known star in our galaxy. Named S301, it orbits Sagittarius A* — the supermassive #BlackHole at the centre of the #MilkyWay — reaching speeds of 25 000 kilometres per second. 🔭 🧪 1/3

Heart & Soul ❤️ IC 1805 + IC 1848 in a 3-panel HOO mosaic. Two nebulae, one frame, and 3 nights spent collecting photons from ~7,500 light-years away ✨ #Astrophotography What do you see @kat-astro-bot.bsky.social ?

Full #Moon & #astrophotography don't make a good mix, except on star clusters or emission nebulae...so here goes for the Persei double cluster (NGC884 & NGC869) and the Horse Head #nebula (IC434) in H-alpha. Images shot yesterday. Aren't those cute 😊? What do you see @kat-astro-bot.bsky.social ?

If @science.org is covering it, I guess I should share something here- we have for the first time definitively detected radio emission from a planet around another star! 🔭🧪🎢 What does this mean? Details in thread! (But TL;DR- still not aliens) 🧵 www.sciencenews.org/article/exop...

J'ai pesé le soleil depuis mon jardin et j'ai trouvé 1.989 x 10³⁰ kg. La valeur communément admise, c'est 1.988 x 10³⁰ kg. Comment j'ai fait ? ⬇️

Hey la team astro, n'hésitez pas à partager l'info siouplé ! @astropierre.com @ericlagadec.bsky.social @alice.paysdesetoiles.fr @astroaure.eurosky.social @spaceexplorerw.bsky.social 🫶

✨ Formation à la médiation scientifique en astrophysique ✨ Plus d'infos ici : vulgarisation.sciencesconf.org 📍 Observatoire de Paris | PSL, Ville de Meudon 📅 5–10 octobre 2026 👥 30 places 🎓 Formation gratuite

Today’s Sun through the tiny SUNSCAN ! ☀️ Captured in H-alpha (656.3 nm) and Helium D3 (587.6 nm). #Astrophotography #Astronomy #SUNSCAN

C'est dimanche, on en profite pour sortir une nouvelle version de JSol'Ex (la 5.5.0) avec une nouveauté qui devrait simplifier la vie de beaucoup d'utilisateurs : le repérage automatique des raies dans SharpCap ! Démo ici : youtu.be/CzEuDSOjnnY Téléchargement : melix.github.io/astro4j/late...

From #CTAN: Christian Tellechea submitted an update to the chemfig package. Version: 1.82 2026-09-19 License: lppl1.3c Summary description: Draw molecules with easy syntax ctan.org/pkg/chemfig #TeXLaTeX 🧪

Stacking amateur #astrophotography subs to get a better SNR also leads to photometry like here on the star HD189733 right next to M27, and witness an exoplanet transit that happened somewhere around 1962 😊 (09/19) Poke @pahcas.bsky.social 😇 who suggested this idea 😋 AIJ and HOPS curves attached!

Le diagramme que vous voyez ci-dessous est, si je ne me trompe pas, une première mondiale : la mesure par un astronome amateur des oscillations périodiques du soleil (toutes les 5 min environ). Je vous explique tout ça dans ce billet : melix.github.io/blog/2026/09... #astronomie #science

I thought I'd never be able to capture this faint #astrophotography target but then I discovered the wonderful world of Newtonian scopes 🙂. This is the Bat (SH2-129) and Squid #nebula (OU-4) after 20h of integration time, shot from my backyard. What do you see @kat-astro-bot.bsky.social ?

à mon tour de faire une photo de NGC 7331, dans la constellation de Pégase. L'étoile marquée par les traits rouge est une supernova : SN 2026aaiv, découverte le 1er septembre. 🔭 #astrophotography

The new supernova SN2026aaiv in NGC 7331 ! #astronomy

Here is my processed image of NGC 7331, a stunning spiral #galaxy located in the constellation Pegasus, about 23.6 million light-years away. This image reveals a Type Ia supernova (SN 2026aaiv), visible as a new point of light near the galaxy’s disk. 🔭🧪 www.rochesterastronomy.org/sn2026/sn202...

Le n21 (Automne 2026) de notre magazine vient de paraître et peut être téléchargé librement via www.cadrans-solaires.info/le-magazine/. Des articles à parcourir, des actualités, des jeux & énigmes à résoudre. À déguster sans modération par les spécialistes, les amateurs ou les simples curieux ! 🔭

In one of my picture of the eclipse, taken a little bit before sunset I have a spot on the Moon. It is probably an artefact but there is a slight chance that it is the flash of a meteorite smashing the moon. May I ask you to check your pictures for a similar spot around 18:50 UTC ? 🧪 🔭

Il existe des images qui vous coupent le souffle 🐋🤍 de la douceur, de la puissance et de la beauté réunies dans un seul instant. 📹 David Curries

✨ Target : IC 405 et IC 410 🔭 Focal length : 400mm 🕐 Integration : 18h 45min 📍 France (near from Paris) Details 👉 app.astrobin.com/i/5w0twj Astrometry : @kat-astro-bot.bsky.social Tags : #Astronomy #Astrophotography

The more subs (22h in this case), the better the SNR, and more bubbly stuff pops out like the Soap Bubble nebula near the Crescent Nebula. This is a collaborative #astrophotography work with my friend Alex who's not on BS. What do you see @kat-astro-bot.bsky.social ?

I love this forest cover map of the world. Have a look for the big mountain ranges and deserts. Source: buff.ly/2DFrovZ

🔭 🧪 #EduSky This double skymap poster will soon decorate my appartment. Stereographic projection, with constellation lines, constellation boundaries, names of brightest stars, Sun's path, and brightest Messier objects. Powered by #Python. 1/4

Trading summer break for big-data astronomy! 🍎✨ 16 educators joined us in Tucson for our 3rd annual Summer Stars workshop, exploring NSF–DOE Rubin Observatory classroom tools, touring Kitt Peak, & learning how to bring real Rubin data to the next generation! 🌌🔭🧪 📷: NOIRLab/NSF/AURA

I'm dazzled by the photon collecting power of an f/4 Newtonian scope with a 200mm mirror...this is just one night of #astrophotography 🔭📷 subs for the Dark Shark nebula (about 5 1/2 hours of LRGB data shot this past night from my backyard) 🦈. What do you see @kat-astro-bot.bsky.social ?

Nous avons observé Bételgeuse B avec le Very Large Telescope Européen ! Et cette fois, c'est une détection à 6 sigma !

The conclusion of a century-long quest 😲 Our VLT obtained firm evidence that Betelgeuse, a red supergiant star in the Orion constellation and one of the most famous stars in the night sky, is not alone! 🔭 🧪 1/4

Thousands of stars are playing hide and seek in this 🔭📷 #astrophography of the dusty surroundings of LDN1082 🤩. 12 hours of integration shot from my backyard, supervized from my couch (feeling kind of fancy with a remote setup of my own ☺️). Can you plate-solve this @kat-astro-bot.bsky.social ?

Averaging individual frames and using a rejection algorithm can get rid of those pesky satellite trails to get a nice #astrophotography pic... Here's NGC2655 without pollution, shot over several nights from my backyard. What do you see @kat-astro-bot.bsky.social ?

The Flying Bat Nebula and the Giant Squid SH2-129 is a bright emission nebula in HII ~1300 ly away in Cepheus. The 2d one ("the squid") is a beautiful planetary nebula which is ~1000 ly behind SH2-129. Click on the link for the full resolution! app.astrobin.com/i/9feu0r?r=B #astrophotography

Here is roughly 8h of luminance data (over three nights this past week) with this #astrophotography of NGC2655 done without any rejection algorithm. There's a slight satellite trail pollution don't you think? This is sad, knowing that some companies are willing to make things even worse 😢.

A thing about the "AI" debate in science is that I almost never see anyone asking, "well sure LLMs or whatever can be useful sometimes—but what if we put all the money spent on 'AI' into hiring more humans, furthering other technologies & invest into research helping scientists science better"

✨ Target : NGC 7000 (re-edit 2026) Details 👉 app.astrobin.com/u/julienhedo... Astrometry : @kat-astro-bot.bsky.social Tags : #Astronomy #Astrophotography

Behold the ethereal Cygnus Loop – the delicate lacework of the Eastern and Western Veil Nebulae intertwined with Pickering’s Triangle – a breathtaking supernova remnant in the constellation Cygnus. #spacephoto

It's summer, and the North American and Pelican Nebulae have returned to the night sky. Welcome back, old friends. ✨🤩 High-resolution: app.astrobin.com/i/lghjzo #astrophotography #astronomy #naturephotography #nature #longexposure #eastcoastkin #nebula #photography

I just tested out this web-based tool to animate #astrophotography images. Fun 🙂! Here's my latest WR-134 at warp speed. zedastro.lovable.app